Bio Anth Exam 1 – Flashcards

Unlock all answers in this set

Unlock answers
question
The environment does not affect humans' biological makeup.
answer
False
question
Physical anthropologists study only Africa, where humans evolved.
answer
False
question
___________ created the discipline of American anthropology.
answer
Franz Boas
question
Physical anthropology and biological anthropology are equivalent.
answer
True
question
Which of the following would a physical anthropologist NOT study to learn more about humans?
answer
Pottery and stone tools
question
Humankind is still evolving, but recent genetic changes are often less interesting to physical anthropologists than the striking evolutionary changes that differentiated our hominid ancestors from apes. What is a possible reason for this?
answer
Our species now completely depends on culture for its survival.
question
Physical anthropology is the study of human __________ and human _________.
answer
evolution / variation
question
Your best friend's great-uncle went missing in action during his Pacific tour of duty during World War II. Your friend wants to find out what happened to these enlisted men and women and to bring them home. What course of study would you suggest that your friend pursue in college?
answer
Forensic anthropology
question
New research in Ethiopia in 2001 changed the way we think about human origins by demonstrating that the earliest hominids lived in:
answer
Woodlands
question
The four branches of anthropology are:
answer
cultural anthropology, biological anthropology, archaeology, and linguistic anthropology.
question
Which of the following outlines the steps of the scientific method in their proper order?
answer
Identify a problem; state a hypothesis; collect data; test the hypothesis.
question
Modern humans lost the typical primate honing-canine used for food processing because of which invention?
answer
Stone tools
question
Your professor researches the Turkana pastoralists of Kenya, investigating both the genetic changes that allow them to easily digest milk and the role that dairy animals have played in their history. Your professor most likely uses which of the following methods in her research?
answer
Biocultural approach
question
Physical anthropology deals with all aspects of human biology, both past and present.
answer
True
question
A scientific theory is nothing more than a guess.
answer
False
question
For your physical anthropology research project, you report that you measured the length of 150 gorilla thighbones, and you suggest that the two groups you found represent different sexes. What problem might your professor have with this report?
answer
Your report does not attempt to test a hypothesis.
question
Comparing the skeletons of Aegyptopithecus and Oreopithecus, two extinct species of primates, can provide physical anthropologists information about the human past.
answer
True
question
The only source of new genetic material is
answer
Mutation
question
One of the theories put forth to explain the evolution of modern humans is that Homo sapiens arose more or less simultaneously in a variety of major geographical locales in the Old World (Europe, Africa, and Asia) through interbreeding of populations. A criticism of this theory based on the forces of evolution is that
answer
There would have been insufficient gene flow among the relatively few Homo sapiens in the world to maintain a single gene pool.
question
Darwin believed that ________________ was the primary cause of evolution.
answer
Natural selection
question
The study of taxonomy was enriched by the work of
answer
Carolus Linnaeus.
question
This naturalist spent five years on the HMS Beagle.
answer
Charles Darwin
question
Your history professor is interested in genealogy and tells your class that, on his mother's side, he is descended from the original Amish population in Pennsylvania, a religious and insular group of people who tended to marry within their social circle. He also notes that many of his extended family members have the condition polydactyly, an extra finger or toe. The high frequency of polydactyly in your professor's ancestry is an example of _________________ in the Pennsylvania Amish.
answer
Genetic drift
question
Darwin studied species of ____________ in the ____________ Islands when coming up with his ideas about evolution
answer
Finches / Galapagos
question
The "peppered" moths of northern England range from light-colored to dark-colored. During the Industrial Revolution, soot and smoke covered trees, and the peppered moth population became predominantly dark-colored, as these moths were better able to avoid predation by blending into their surroundings. This example illustrates which force of evolution?
answer
Natural selection
question
The HMS Beagle, whose path is seen here, circumnavigated the globe.
answer
True
question
In a simplified example of eye color inheritance, B stands for the allele for brown eyes and is dominant. Blue eyes are represented by the recessive allele b. A child who inherits one of each allele from her parents will have the genotype Bb and therefore have brown eyes.
answer
True
question
Swine flu (H1N1) is the result of viral evolution.
answer
True
question
Your cousin insists that he ran into your doppelganger - the spitting image of you - at the mall. You counter this assertion with your knowledge of physical anthropology by replying that:
answer
Both Malthus and Darwin observed that variation exists within a species and no two members are exactly alike.
question
Darwin did not know about genes but believed that traits passed from parents to offspring by particles called
answer
Gemmules
question
According to Linnean taxonomy, humans are in the genus and species
answer
Homo sapiens
question
Darwin's ideas helped stimulate research in the fields of biology, genetics, comparative anatomy, and physical anthropology.
answer
True
question
While home for winter break, you start telling your grandmother about your physical anthropology class. She once heard about a man who became a bodybuilder and then produced muscular children, and she asks you to explain how this could happen. You say that
answer
This is an example of Lamarckism, which has some kernels of truth about evolution but is not a wholly accurate theory.
question
Uniformitarianism, an important idea in geology, was proposed by these two scientists.
answer
Hutton and Lyell
question
According to Linnean taxonomy, the most specific category and level shared by humans, gorillas, and howler monkeys is
answer
Suborder anthropoidea
question
Darwin's ideas about evolution and Mendel's research in genetics are combined into what we now call the idea of blending inheritance.
answer
False
question
The four forces of evolution are
answer
Gene flow, genetic drift, mutation, and natural selection.
question
What determines which genetic material is passed on?
answer
Independent assortment
question
Who discovered that DNA has a right twisted, double helix, ladderlike structure
answer
Watson and Crick
question
What is the concept that refers to the presence of two or more separate phenotypes for a certain gene in a population? And give an example
answer
Polymorphism, human blood
question
The somatic type of eukaryotic cells makes up
answer
Bone, muscle, skin, fat, hair, brain
question
Regulatory or functional proteins include
answer
Lactose, antibodies and testosterone
question
The largest organelles in a cell are the mitochondria.
answer
False, its the nucleus
question
As you're waiting at the doctor's office, you overhear another patient discussing with the doctor how unlucky he is to be going bald at such a young age. The doctor counters this assertion and explains that
answer
Luck has nothing to do with it; rather an SNP (single nucleotide polymorphism) can code for susceptibility to baldness, so his problem is genetic.
question
Human and chimpanzee DNA is about _________ similar.
answer
98%
question
Blocks of genetic material that do not recombine and are passed on for generations are called
answer
Haplotypes
question
If one side of the DNA ladder includes the sequence CTAATGT, the complementary base configuration for this sequence will be
answer
GATTACA
question
This picture demonstrates that E. coli is a prokaryotic bacterium.
answer
True
question
In RNA, _________ replaces thymine as a nucleotide base.
answer
Uracil
question
The potato and the guinea pig have more chromosomes than humans do.
answer
True
question
Your friend who is also taking a physical anthropology class tells you over dinner one night that after learning about dominant and recessive traits, she is certain she is adopted, because
answer
Both of her parents have cleft chins, but she does not.
question
During a visit to the circus, you and a friend stumble into a tent with a "freaks of nature" display. Your friend points out a photograph of a man whose left arm is protruding from his left hip rather than from his shoulder. You explain to your friend that this condition was likely caused by a mutation in the man's
answer
Homeotic genes
question
In protein synthesis, ___________ refers to "unzipping" the DNA and ____________ refers to the formation of polypeptide chains.
answer
Transcription/translation
question
Is hair composed of functional proteins?
answer
False
question
The assertion that each parent provides one allele for any inherited trait is known as the Law of Segregation.
answer
True
question
If a man and a woman who both have the AB blood phenotype have a child, the one blood type that child cannot have is
answer
O
question
The human karyotype consists of ______ pairs of chromosomes.
answer
23
question
You and your roommate learned that you shared the same maternal ancestor 15,000 years ago in Europe after doing a genetic analysis on your respective
answer
Mitochondrial DNA (mtDNA)
question
An offspring with the chromosome pair XX will be
answer
Female
question
Structural proteins found in the human body are not responsible for what
answer
When you go through puberty
question
If you wanted to sequence the genome of Ötzi, the 5,300-year-old "Iceman" mummy found in the Alps in 1991, which method would you be most likely to use?
answer
PCR: polymerase chain reaction
question
Prokaryotes have multiple cells while eukaryotes have one.
answer
False
question
Deoxyribonucleic acid (DNA) differs from ribonucleic acid (RNA) in that:
answer
It is the "recipe" for all biological characteristics and functions.
question
____________ is the production of body cells, whereas _________ is the production of sex cells.
answer
Mitosis / meiosis
question
_________ genes regulate embryonic development.
answer
Homeotic (Hox)
question
In his work on pea plants, Mendel found that plant height was inherited independently of the type or color of the seed coat. This finding:
answer
Applies to the law of independent assortment.
question
The two alleles that result in the expressed phenotype for hemoglobin are equally expressed. This is an example of:
answer
Codominance
question
Gametes are:
answer
Haploid
question
DNA:
answer
Directs cellular function.
question
The complete set of genes in an individual cell is called the genome.
answer
True
question
For the human sex chromosomes, males have
answer
An X chromosome and a Y chromosome.
question
The DNA molecule is made up of ____ chemical bases.
answer
4
question
Human ABO blood types are:
answer
Controlled by multiple alleles.
question
DNA replication produces:
answer
Two identical daughter cells.
question
Each parent contributes one allele at each locus to his or her offspring. This is known as Mendel's Law of
answer
Segregation
question
Heritability is a measure of the proportion of total variation that is related to ___________ variation.
answer
Genetic
question
Meiosis results in the production of:
answer
Four gametes.
question
Where does transcription occur?
answer
Occurs in the nucleus.
question
Hox genes:
answer
Appear to function in similar ways across diverse groups of organisms.
question
Hemoglobin is an amino acid.
answer
False
question
A doctor finds that the mammary glands of a woman are not functioning due to a genetic abnormality that influences the structural design of the thoracic cavity. This is likely:
answer
The result of a mutation on a Hox gene.
question
In mammals, the male parent's gametes determine the sex of his offspring because:
answer
The Y chromosome is present in males only.
question
One chemical difference between DNA and RNA is that RNA has the base ___ instead of the base T.
answer
U
question
Imagine a species where there is a locus with two alleles, A and B. Further imagine that A and B are codominant. How many different phenotypes are possible in this species?
answer
3
question
Somatic cells include all of the following EXCEPT:
answer
Sex cells
question
The expression of polygenic traits:
answer
Is determined by genes at several loci in conjunction with environmental factors.
question
Given that humans and apes share over 98 percent of their genetic material, it seems likely that their anatomical differences involve differences in __________ genes.
answer
Regulatory
question
Traits that are due, in part, to multiple loci are known as _________ traits.
answer
Polygenic
question
The MN blood group has two codominant alleles. How can a woman with type M blood have a child with type N blood?
answer
The woman could never have a child with type N blood.
question
The following are complementary bases in DNA:
answer
Adenine and thymine.
question
The ABO blood group has three alleles (A, B, O) where A and B are codominant and O is recessive. If a man with type O blood mates with a woman with type A blood, the expected proportion of heterozygotes among their offspring is ________ depending on the genotype of the woman.
answer
50 or 100 percent.
question
Homeotic (Hox) genes are:
answer
Responsible for the development and location of key body parts.
question
The gene pool includes only the beneficial traits in a population.
answer
False
question
The genotype that confers protection against malaria while allowing an individual to survive and reproduce is
answer
AS
question
An online article that your professor asked you to critique states that African Americans cannot contract malaria, even if they go to endemic areas, because of a genetic trait that confers protection from the disease. Your response is that this article is incorrect because
answer
Balanced polymorphism means that not all African Americans are heterozygous for the sickle cell trait.
question
At the end of last semester, your professor had a baby. In class, she notes that her baby weighed 7.2 lbs at birth. The other babies in the nursery that week weighed 7.0 lbs, 6.8 lbs, 9.2 lbs, 7.5 lbs, and 7.3 lbs. When she asks what phenomenon this pattern of birth weights represents, you raise your hand and correctly answer
answer
Stabilizing selection
question
Compared to the normal male karyotype, a man affected by Klinefelter's syndrome has
answer
One more X chromosome
question
Mutation is the only source of new genetic material.
answer
True
question
The two main types of mutations are
answer
Spontaneous and induced.
question
At Thanksgiving dinner, your dad tells the old story about how your great-grandmother's longevity was related to a daily breakfast of coffee and grapefruit plus broccoli every night with dinner. No one else in your extended family lived to over 100 like she did, and your dad insists that this is because everyone else in the family has failed in their attempt to follow her diet plan. You speak up this Thanksgiving and offer your hypothesis that the dietary failure of the subsequent generations suggests that
answer
Your great-grandmother was a PTC-nontaster whereas everyone else in your family can taste PTC.
question
What abnormality is not linked to malaria?
answer
Leucism
question
The three patterns of natural selection are
answer
Stabilizing, directional, and disruptive.
question
Another name for a reproductive population is
answer
Deme
question
Lactase deficiency is the most common protein deficiency in the world.
answer
True
question
Members of a population that can breed and produce viable offspring are considered to be of the same
answer
Species
question
The case of the peppered moth and industrial melanism during the Industrial Revolution in England illustrates
answer
Change in frequency of the nonmelanic genotype.
question
Your cousin just started a part-time job at a blood bank. He tells you that a surprisingly large number of Native Americans come in to donate blood. You explain to him that, based on what you learned in physical anthropology class, this is not all that surprising because
answer
Owing to a founder effect, many Native American populations have high frequencies of the O blood type.
question
A change in allele frequencies from one generation to the next is an example of evolution.
answer
True
question
If 70% of the hypothetical population passed along allele B, the dominant allele for brown eyes, and 30% passed along allele b, the recessive allele for blue eyes, the proportion of the subsequent generation with brown eyes would be ___________ given Hardy-Weinberg equilibrium.
answer
91%
question
Huntington's chorea is a genetically linked debilitating degenerative disorder with an onset usually after the fourth decade of life. The reason that this disease has not been eliminated through natural selection and is actually quite prevalent among communities in Lake Maracaibo, Venezuela, is
answer
The onset of the disease after prime childbearing years means it is largely unaffected by natural selection.
question
Recent research indicates malaria was present in the Americas prior to Columbus.
answer
False
question
Populations in which reproduction within the group is encouraged are called
answer
Endogamous
question
What are the four forces of evolution?
answer
Mutation, gene flow, genetic drift and natural selection
question
According to Darwin natural selection acts on who?
answer
Individuals
question
When genetic drift happens in separate populations (no gene flow) what happens to the differences over time?
answer
The differences increase
question
When genetic drift happens in populations what happens to variation within the group over time (# of different alleles present)?
answer
The variation decreases
question
If we see changes in allele frequencies from one generation to the next, what is happening?
answer
Evolution
question
Can diet and lifestyle change the expression of our genes?
answer
Yes, this is called epigenetics
question
What is the name of the rare form of albinism that affects an usually high number of people in Puerto Rico? What is this an example of?
answer
Hermansky Pudlak Syndrome type 1, founder effect
question
What is sickle cell disease?
answer
RBC are sickle shaped, stretched/deformed so they get stuck/clump together, can't fit through blood vessels, get torn up and oxygen isn't delivered to tissues, lots of pain
question
What is Tay Sachs disease?
answer
An incurable, unpreventable, pre programmed in genes disease, at 6 month baby loses control of body, head grows large, becomes blind and essentially a vegetable, dies before age 4
question
Name three groups that have abnormally high occurrences of Tay Sachs
answer
Eastern European Ashkenazium Jews, French Canadians, Dutch in PA
question
What other two diseases do Eastern European Jews have abnormally high occurrences of?
answer
Gauchers and Niemann Pick
question
Eastern European Jews with Tay Sachs have a less likely chance of having what?
answer
Tuberculosis
question
Natural selection is organisms trying to adapt. (T or F)
answer
False
question
What is sexual dimorphism?
answer
A sexually determined physical difference
question
What is a homology and give an example
answer
Body parts that spring from the same embryological parts but may have different functions. Whale's flippers, human hands, bat's wings
question
What is an analogy and give an example
answer
Body parts that serve the same function but have very different developmental origins. Wings in birds and insects
question
What are vestigial traits and give an example
answer
Leftover parts that seems to no longer serve a necessary function. The appendix in humans and wings for flightless birds such as the ostrich
question
What is meant by divergent evolution?
answer
Living things become more different overtime
question
What is meant by convergent evolution?
answer
Random mutation in living things might lead them to similar outcomes or to be more alike
question
What is the Mendelian Law of Segregation?
answer
One atom of inheritance comes from each parent
question
What is the Mendelian Law of Dominance?
answer
Some types of traits mask the effects of others, are dominant
question
What did Gregor Mendel study?
answer
How 7 traits were inherited in pea plants, concluded that offspring receive one discrete unit (gene) from each parent. But his observations did not support a blending theory for inheritance
question
What are body cells called?
answer
Somatic cells
question
What are sex cells called?
answer
Gametes
question
What is the production of body cells called?
answer
Mitosis
question
What is the production of sex cells called?
answer
Meiosis
question
DNA replication takes place only during the production of new gametes. (T/F)
answer
False
Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New